Fire clay is a term applied to a range of refractory clays used in the manufacture of ceramics, especially fire brick. The United States Environmental Protection Agency defines fire clay very generally as a "mineral aggregate composed of hydrous silicates of aluminium (Al2O3.2SiO2.2H2O) with or without free silica."
Read more about Fire Clay: Properties, Chemical Composition, Extraction
Famous quotes containing the words fire and/or clay:
“Perhaps my best years are gone. When there was a chance of happiness. But I wouldn’t want them back. Not with the fire in me now.”
—Samuel Beckett (1906–1989)
“Protoplasm, simple or nucleated, is the formal basis of all life. It is the clay of the potter: which, bake it and paint it as he will, remains clay, separated by artifice, and not by nature from the commonest brick or sun-dried clod.”
—Thomas Henry Huxley (1825–1895)